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API > API/Runtime > API/Runtime/TypedElementRuntime > API/Runtime/TypedElementRuntime/UTypedElementSelectionSet
Access the delegate that is invoked whenever the underlying element list is potentially about to change.
This may be called even if no actual change happens, so may be called multiple times without a corresponding OnChanged notification.
| Name | FOnPreChange |
| Type | class |
| Header File | /Engine/Source/Runtime/TypedElementRuntime/Public/Elements/Framework/TypedElementSelectionSet.h |
| Include Path | #include "Elements/Framework/TypedElementSelectionSet.h" |
Syntax
class FOnPreChange : public TBaseMulticastDelegate_OneParam< void, const UTypedElementSelectionSet * >
Inheritance Hierarchy
- TBaseMulticastDelegate_OneParam< void, const UTypedElementSelectionSet * > → UTypedElementSelectionSet::FOnPreChange